mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 11:18:28 +00:00
9d922450aa
This header includes things that are needed to make driver build. Adjust existing users to include that always, even if other dm/ includes are present Signed-off-by: Simon Glass <sjg@chromium.org>
67 lines
1.3 KiB
C
67 lines
1.3 KiB
C
/*
|
|
* Copyright (C) 2016 Atmel Corporation
|
|
* Wenyou.Yang <wenyou.yang@atmel.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <clk-uclass.h>
|
|
#include <dm.h>
|
|
#include <linux/io.h>
|
|
#include <mach/at91_pmc.h>
|
|
#include "pmc.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#define UTMI_FIXED_MUL 40
|
|
|
|
static int utmi_clk_enable(struct clk *clk)
|
|
{
|
|
struct pmc_platdata *plat = dev_get_platdata(clk->dev);
|
|
struct at91_pmc *pmc = plat->reg_base;
|
|
u32 tmp;
|
|
|
|
if (readl(&pmc->sr) & AT91_PMC_LOCKU)
|
|
return 0;
|
|
|
|
tmp = readl(&pmc->uckr);
|
|
tmp |= AT91_PMC_UPLLEN |
|
|
AT91_PMC_UPLLCOUNT |
|
|
AT91_PMC_BIASEN;
|
|
writel(tmp, &pmc->uckr);
|
|
|
|
while (!(readl(&pmc->sr) & AT91_PMC_LOCKU))
|
|
;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ulong utmi_clk_get_rate(struct clk *clk)
|
|
{
|
|
return gd->arch.main_clk_rate_hz * UTMI_FIXED_MUL;
|
|
}
|
|
|
|
static struct clk_ops utmi_clk_ops = {
|
|
.enable = utmi_clk_enable,
|
|
.get_rate = utmi_clk_get_rate,
|
|
};
|
|
|
|
static int utmi_clk_probe(struct udevice *dev)
|
|
{
|
|
return at91_pmc_core_probe(dev);
|
|
}
|
|
|
|
static const struct udevice_id utmi_clk_match[] = {
|
|
{ .compatible = "atmel,at91sam9x5-clk-utmi" },
|
|
{}
|
|
};
|
|
|
|
U_BOOT_DRIVER(at91sam9x5_utmi_clk) = {
|
|
.name = "at91sam9x5-utmi-clk",
|
|
.id = UCLASS_CLK,
|
|
.of_match = utmi_clk_match,
|
|
.probe = utmi_clk_probe,
|
|
.platdata_auto_alloc_size = sizeof(struct pmc_platdata),
|
|
.ops = &utmi_clk_ops,
|
|
};
|